This happens a lot more than it should

I get into a game, not my best game ever, but a game and I get an udyr who starts running it down mid because "I want to rank up but you're garbage and I can't win so I want to lose faster". Guess what? We won without his ass. What does he do? He says "Yall are garbage" and leaves anyway with no respect. I get an instant feedback report because he literally spammed chat with shit like: "I'm feeding on purpose and still doing better than you" "Wipe us out and win please" "Running it down mid"

So I'm happy to say sometimes these cases are so damn obvious that at least the moron using chat to say he was feeding got punished.